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.TH "CMAKE" "1" "Aug 23, 2023" "3.27.4" "CMake"
.SH NAME
cmake \- CMake Command-Line Reference
.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
\fI\%Generate a Project Buildsystem\fP
 cmake [<options>] \-B <path\-to\-build> [\-S <path\-to\-source>]
 cmake [<options>] <path\-to\-source | path\-to\-existing\-build>

\fI\%Build a Project\fP
 cmake \-\-build <dir> [<options>] [\-\- <build\-tool\-options>]

\fI\%Install a Project\fP
 cmake \-\-install <dir> [<options>]

\fI\%Open a Project\fP
 cmake \-\-open <dir>

\fI\%Run a Script\fP
 cmake [\-D <var>=<value>]... \-P <cmake\-script\-file>

\fI\%Run a Command\-Line Tool\fP
 cmake \-E <command> [<options>]

\fI\%Run the Find\-Package Tool\fP
 cmake \-\-find\-package [<options>]

\fI\%Run a Workflow Preset\fP
 cmake \-\-workflow [<options>]

\fI\%View Help\fP
 cmake \-\-help[\-<topic>]
.ft P
.fi
.UNINDENT
.UNINDENT
.SH DESCRIPTION
.sp
The \fBcmake\fP executable is the command\-line interface of the cross\-platform
buildsystem generator CMake.  The above \fI\%Synopsis\fP lists various actions
the tool can perform as described in sections below.
.sp
To build a software project with CMake, \fI\%Generate a Project Buildsystem\fP\&.
Optionally use \fBcmake\fP to \fI\%Build a Project\fP, \fI\%Install a Project\fP or just
run the corresponding build tool (e.g. \fBmake\fP) directly.  \fBcmake\fP can also
be used to \fI\%View Help\fP\&.
.sp
The other actions are meant for use by software developers writing
scripts in the \fI\%CMake language\fP to support
their builds.
.sp
For graphical user interfaces that may be used in place of \fBcmake\fP,
see \fI\%ccmake\fP and \fI\%cmake\-gui\fP\&.
For command\-line interfaces to the CMake testing and packaging facilities,
see \fI\%ctest\fP and \fI\%cpack\fP\&.
.sp
For more information on CMake at large, \fI\%see also\fP the links at the end
of this manual.
.SH INTRODUCTION TO CMAKE BUILDSYSTEMS
.sp
A \fIbuildsystem\fP describes how to build a project\(aqs executables and libraries
from its source code using a \fIbuild tool\fP to automate the process.  For
example, a buildsystem may be a \fBMakefile\fP for use with a command\-line
\fBmake\fP tool or a project file for an Integrated Development Environment
(IDE).  In order to avoid maintaining multiple such buildsystems, a project
may specify its buildsystem abstractly using files written in the
\fI\%CMake language\fP\&.  From these files CMake
generates a preferred buildsystem locally for each user through a backend
called a \fIgenerator\fP\&.
.sp
To generate a buildsystem with CMake, the following must be selected:
.INDENT 0.0
.TP
.B Source Tree
The top\-level directory containing source files provided by the project.
The project specifies its buildsystem using files as described in the
\fI\%cmake\-language(7)\fP manual, starting with a top\-level file named
\fBCMakeLists.txt\fP\&.  These files specify build targets and their
dependencies as described in the \fI\%cmake\-buildsystem(7)\fP manual.
.TP
.B Build Tree
The top\-level directory in which buildsystem files and build output
artifacts (e.g. executables and libraries) are to be stored.
CMake will write a \fBCMakeCache.txt\fP file to identify the directory
as a build tree and store persistent information such as buildsystem
configuration options.
.sp
To maintain a pristine source tree, perform an \fIout\-of\-source\fP build
by using a separate dedicated build tree.  An \fIin\-source\fP build in
which the build tree is placed in the same directory as the source
tree is also supported, but discouraged.
.TP
.B Generator
This chooses the kind of buildsystem to generate.  See the
\fI\%cmake\-generators(7)\fP manual for documentation of all generators.
Run \fI\%cmake \-\-help\fP to see a list of generators available locally.
Optionally use the \fI\%\-G\fP option below to specify a
generator, or simply accept the default CMake chooses for the current
platform.
.sp
When using one of the \fI\%Command\-Line Build Tool Generators\fP
CMake expects that the environment needed by the compiler toolchain
is already configured in the shell.  When using one of the
\fI\%IDE Build Tool Generators\fP, no particular environment is needed.
.UNINDENT
.SH GENERATE A PROJECT BUILDSYSTEM
.sp
Run CMake with one of the following command signatures to specify the
source and build trees and generate a buildsystem:
.sp
\fBcmake [<options>] \-B <path\-to\-build> [\-S <path\-to\-source>]\fP
.INDENT 0.0
.INDENT 3.5
New in version 3.13.

.sp
Uses \fB<path\-to\-build>\fP as the build tree and \fB<path\-to\-source>\fP
as the source tree.  The specified paths may be absolute or relative
to the current working directory.  The source tree must contain a
\fBCMakeLists.txt\fP file.  The build tree will be created automatically
if it does not already exist.  For example:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
$ cmake \-S src \-B build
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \fBcmake [<options>] <path\-to\-source>\fP
Uses the current working directory as the build tree, and
\fB<path\-to\-source>\fP as the source tree.  The specified path may
be absolute or relative to the current working directory.
The source tree must contain a \fBCMakeLists.txt\fP file and must
\fInot\fP contain a \fBCMakeCache.txt\fP file because the latter
identifies an existing build tree.  For example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
$ mkdir build ; cd build
$ cmake ../src
.ft P
.fi
.UNINDENT
.UNINDENT
.TP
.B \fBcmake [<options>] <path\-to\-existing\-build>\fP
Uses \fB<path\-to\-existing\-build>\fP as the build tree, and loads the
path to the source tree from its \fBCMakeCache.txt\fP file, which must
have already been generated by a previous run of CMake.  The specified
path may be absolute or relative to the current working directory.
For example:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
$ cd build
$ cmake .
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.sp
In all cases the \fB<options>\fP may be zero or more of the \fI\%Options\fP below.
.sp
The above styles for specifying the source and build trees may be mixed.
Paths specified with \fI\%\-S\fP or \fI\%\-B\fP
are always classified as source or build trees, respectively.  Paths
specified with plain arguments are classified based on their content
and the types of paths given earlier.  If only one type of path is given,
the current working directory (cwd) is used for the other.  For example:
.TS
center;
|l|l|l|.
_
T{
Command Line
T}	T{
Source Dir
T}	T{
Build Dir
T}
_
T{
\fBcmake \-B build\fP
T}	T{
\fIcwd\fP
T}	T{
\fBbuild\fP
T}
_
T{
\fBcmake \-B build src\fP
T}	T{
\fBsrc\fP
T}	T{
\fBbuild\fP
T}
_
T{
\fBcmake \-B build \-S src\fP
T}	T{
\fBsrc\fP
T}	T{
\fBbuild\fP
T}
_
T{
\fBcmake src\fP
T}	T{
\fBsrc\fP
T}	T{
\fIcwd\fP
T}
_
T{
\fBcmake build\fP (existing)
T}	T{
\fIloaded\fP
T}	T{
\fBbuild\fP
T}
_
T{
\fBcmake \-S src\fP
T}	T{
\fBsrc\fP
T}	T{
\fIcwd\fP
T}
_
T{
\fBcmake \-S src build\fP
T}	T{
\fBsrc\fP
T}	T{
\fBbuild\fP
T}
_
T{
\fBcmake \-S src \-B build\fP
T}	T{
\fBsrc\fP
T}	T{
\fBbuild\fP
T}
_
.TE
.sp
Changed in version 3.23: CMake warns when multiple source paths are specified.  This has never
been officially documented or supported, but older versions accidentally
accepted multiple source paths and used the last path specified.
Avoid passing multiple source path arguments.

.sp
After generating a buildsystem one may use the corresponding native
build tool to build the project.  For example, after using the
\fI\%Unix Makefiles\fP generator one may run \fBmake\fP directly:
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
$ make
$ make install
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.sp
Alternatively, one may use \fBcmake\fP to \fI\%Build a Project\fP by
automatically choosing and invoking the appropriate native build tool.
.SS Options
.INDENT 0.0
.TP
.B \-S <path\-to\-source>
Path to root directory of the CMake project to build.
.UNINDENT
.INDENT 0.0
.TP
.B \-B <path\-to\-build>
Path to directory which CMake will use as the root of build directory.
.sp
If the directory doesn\(aqt already exist CMake will make it.
.UNINDENT
.INDENT 0.0
.TP
.B \-C <initial\-cache>
Pre\-load a script to populate the cache.
.sp
When CMake is first run in an empty build tree, it creates a
\fBCMakeCache.txt\fP file and populates it with customizable settings for
the project.  This option may be used to specify a file from which
to load cache entries before the first pass through the project\(aqs
CMake listfiles.  The loaded entries take priority over the
project\(aqs default values.  The given file should be a CMake script
containing \fI\%set()\fP commands that use the \fBCACHE\fP option, not a
cache\-format file.
.sp
References to \fI\%CMAKE_SOURCE_DIR\fP and \fI\%CMAKE_BINARY_DIR\fP
within the script evaluate to the top\-level source and build tree.
.UNINDENT
.INDENT 0.0
.TP
.B \-D <var>:<type>=<value>, \-D <var>=<value>
Create or update a CMake \fBCACHE\fP entry.
.sp
When CMake is first run in an empty build tree, it creates a
\fBCMakeCache.txt\fP file and populates it with customizable settings for
the project.  This option may be used to specify a setting that
takes priority over the project\(aqs default value.  The option may be
repeated for as many \fBCACHE\fP entries as desired.
.sp
If the \fB:<type>\fP portion is given it must be one of the types
specified by the \fI\%set()\fP command documentation for its
\fBCACHE\fP signature.
If the \fB:<type>\fP portion is omitted the entry will be created
with no type if it does not exist with a type already.  If a
command in the project sets the type to \fBPATH\fP or \fBFILEPATH\fP
then the \fB<value>\fP will be converted to an absolute path.
.sp
This option may also be given as a single argument:
\fB\-D<var>:<type>=<value>\fP or \fB\-D<var>=<value>\fP\&.
.sp
It\(aqs important to note that the order of \fB\-C\fP and \fB\-D\fP arguments is
significant. They will be carried out in the order they are listed, with the
last argument taking precedence over the previous ones. For example, if you
specify \fB\-DCMAKE_BUILD_TYPE=Debug\fP, followed by a \fB\-C\fP argument with a
file that calls:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
set(CMAKE_BUILD_TYPE \(dqRelease\(dq CACHE STRING \(dq\(dq FORCE)
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
then the \fB\-C\fP argument will take precedence, and \fBCMAKE_BUILD_TYPE\fP will
be set to \fBRelease\fP\&. However, if the \fB\-D\fP argument comes after the \fB\-C\fP
argument, it will be set to \fBDebug\fP\&.
.sp
If a \fBset(... CACHE ...)\fP call in the \fB\-C\fP file does not use \fBFORCE\fP,
and a \fB\-D\fP argument sets the same variable, the \fB\-D\fP argument will take
precedence regardless of order because of the nature of non\-\fBFORCE\fP
\fBset(... CACHE ...)\fP calls.
.UNINDENT
.INDENT 0.0
.TP
.B \-U <globbing_expr>
Remove matching entries from CMake \fBCACHE\fP\&.
.sp
This option may be used to remove one or more variables from the
\fBCMakeCache.txt\fP file, globbing expressions using \fB*\fP and \fB?\fP are
supported.  The option may be repeated for as many \fBCACHE\fP entries as
desired.
.sp
Use with care, you can make your \fBCMakeCache.txt\fP non\-working.
.UNINDENT
.INDENT 0.0
.TP
.B \-G <generator\-name>
Specify a build system generator.
.sp
CMake may support multiple native build systems on certain
platforms.  A generator is responsible for generating a particular
build system.  Possible generator names are specified in the
\fI\%cmake\-generators(7)\fP manual.
.sp
If not specified, CMake checks the \fI\%CMAKE_GENERATOR\fP environment
variable and otherwise falls back to a builtin default selection.
.UNINDENT
.INDENT 0.0
.TP
.B \-T <toolset\-spec>
Toolset specification for the generator, if supported.
.sp
Some CMake generators support a toolset specification to tell
the native build system how to choose a compiler.  See the
\fI\%CMAKE_GENERATOR_TOOLSET\fP variable for details.
.UNINDENT
.INDENT 0.0
.TP
.B \-A <platform\-name>
Specify platform name if supported by generator.
.sp
Some CMake generators support a platform name to be given to the
native build system to choose a compiler or SDK.  See the
\fI\%CMAKE_GENERATOR_PLATFORM\fP variable for details.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-toolchain <path\-to\-file>
Specify the cross compiling toolchain file, equivalent to setting
\fI\%CMAKE_TOOLCHAIN_FILE\fP variable.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-install\-prefix <directory>
Specify the installation directory, used by the
\fI\%CMAKE_INSTALL_PREFIX\fP variable. Must be an absolute path.
.UNINDENT
.INDENT 0.0
.TP
.B \-Wno\-dev
Suppress developer warnings.
.sp
Suppress warnings that are meant for the author of the
\fBCMakeLists.txt\fP files. By default this will also turn off
deprecation warnings.
.UNINDENT
.INDENT 0.0
.TP
.B \-Wdev
Enable developer warnings.
.sp
Enable warnings that are meant for the author of the \fBCMakeLists.txt\fP
files. By default this will also turn on deprecation warnings.
.UNINDENT
.INDENT 0.0
.TP
.B \-Wdeprecated
Enable deprecated functionality warnings.
.sp
Enable warnings for usage of deprecated functionality, that are meant
for the author of the \fBCMakeLists.txt\fP files.
.UNINDENT
.INDENT 0.0
.TP
.B \-Wno\-deprecated
Suppress deprecated functionality warnings.
.sp
Suppress warnings for usage of deprecated functionality, that are meant
for the author of the \fBCMakeLists.txt\fP files.
.UNINDENT
.INDENT 0.0
.TP
.B \-Werror=<what>
Treat CMake warnings as errors. \fB<what>\fP must be one of the following:
.INDENT 7.0
.TP
.B \fBdev\fP
Make developer warnings errors.
.sp
Make warnings that are meant for the author of the \fBCMakeLists.txt\fP files
errors. By default this will also turn on deprecated warnings as errors.
.TP
.B \fBdeprecated\fP
Make deprecated macro and function warnings errors.
.sp
Make warnings for usage of deprecated macros and functions, that are meant
for the author of the \fBCMakeLists.txt\fP files, errors.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-Wno\-error=<what>
Do not treat CMake warnings as errors. \fB<what>\fP must be one of the following:
.INDENT 7.0
.TP
.B \fBdev\fP
Make warnings that are meant for the author of the \fBCMakeLists.txt\fP files not
errors. By default this will also turn off deprecated warnings as errors.
.TP
.B \fBdeprecated\fP
Make warnings for usage of deprecated macros and functions, that are meant
for the author of the \fBCMakeLists.txt\fP files, not errors.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-\-fresh
New in version 3.24.

.sp
Perform a fresh configuration of the build tree.
This removes any existing \fBCMakeCache.txt\fP file and associated
\fBCMakeFiles/\fP directory, and recreates them from scratch.
.UNINDENT
.INDENT 0.0
.TP
.B \-L[A][H]
List non\-advanced cached variables.
.sp
List \fBCACHE\fP variables will run CMake and list all the variables from
the CMake \fBCACHE\fP that are not marked as \fBINTERNAL\fP or \fI\%ADVANCED\fP\&.
This will effectively display current CMake settings, which can then be
changed with \fI\%\-D\fP option.  Changing some of the variables
may result in more variables being created.  If \fBA\fP is specified, then it
will display also advanced variables.  If \fBH\fP is specified, it will also
display help for each variable.
.UNINDENT
.INDENT 0.0
.TP
.B \-N
View mode only.
.sp
Only load the cache.  Do not actually run configure and generate
steps.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-graphviz=<file>
Generate graphviz of dependencies, see \fI\%CMakeGraphVizOptions\fP for more.
.sp
Generate a graphviz input file that will contain all the library and
executable dependencies in the project.  See the documentation for
\fI\%CMakeGraphVizOptions\fP for more details.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-system\-information [file]
Dump information about this system.
.sp
Dump a wide range of information about the current system.  If run
from the top of a binary tree for a CMake project it will dump
additional information such as the cache, log files etc.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-log\-level=<level>
Set the log \fB<level>\fP\&.
.sp
The \fI\%message()\fP command will only output messages of the specified
log level or higher.  The valid log levels are \fBERROR\fP, \fBWARNING\fP,
\fBNOTICE\fP, \fBSTATUS\fP (default), \fBVERBOSE\fP, \fBDEBUG\fP, or \fBTRACE\fP\&.
.sp
To make a log level persist between CMake runs, set
\fI\%CMAKE_MESSAGE_LOG_LEVEL\fP as a cache variable instead.
If both the command line option and the variable are given, the command line
option takes precedence.
.sp
For backward compatibility reasons, \fB\-\-loglevel\fP is also accepted as a
synonym for this option.
.sp
New in version 3.25: See the \fI\%cmake_language()\fP command for a way to
\fI\%query the current message logging level\fP\&.

.UNINDENT
.INDENT 0.0
.TP
.B \-\-log\-context
Enable the \fI\%message()\fP command outputting context attached to each
message.
.sp
This option turns on showing context for the current CMake run only.
To make showing the context persistent for all subsequent CMake runs, set
\fI\%CMAKE_MESSAGE_CONTEXT_SHOW\fP as a cache variable instead.
When this command line option is given, \fI\%CMAKE_MESSAGE_CONTEXT_SHOW\fP
is ignored.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debug\-trycompile
Do not delete the files and directories created for
\fI\%try_compile()\fP / \fI\%try_run()\fP calls.
This is useful in debugging failed checks.
.sp
Note that some uses of \fI\%try_compile()\fP may use the same build tree,
which will limit the usefulness of this option if a project executes more
than one \fI\%try_compile()\fP\&.  For example, such uses may change results
as artifacts from a previous try\-compile may cause a different test to either
pass or fail incorrectly.  This option is best used only when debugging.
.sp
(With respect to the preceding, the \fI\%try_run()\fP command
is effectively a \fI\%try_compile()\fP\&.  Any combination of the two
is subject to the potential issues described.)
.sp
New in version 3.25: When this option is enabled, every try\-compile check prints a log
message reporting the directory in which the check is performed.

.UNINDENT
.INDENT 0.0
.TP
.B \-\-debug\-output
Put cmake in a debug mode.
.sp
Print extra information during the cmake run like stack traces with
\fI\%message(SEND_ERROR)\fP calls.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debug\-find
Put cmake find commands in a debug mode.
.sp
Print extra find call information during the cmake run to standard
error. Output is designed for human consumption and not for parsing.
See also the \fI\%CMAKE_FIND_DEBUG_MODE\fP variable for debugging
a more local part of the project.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debug\-find\-pkg=<pkg>[,...]
Put cmake find commands in a debug mode when running under calls
to \fI\%find_package(<pkg>)\fP, where \fB<pkg>\fP
is an entry in the given comma\-separated list of case\-sensitive package
names.
.sp
Like \fI\%\-\-debug\-find\fP, but limiting scope
to the specified packages.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debug\-find\-var=<var>[,...]
Put cmake find commands in a debug mode when called with \fB<var>\fP
as the result variable, where \fB<var>\fP is an entry in the given
comma\-separated list.
.sp
Like \fI\%\-\-debug\-find\fP, but limiting scope
to the specified variable names.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-trace
Put cmake in trace mode.
.sp
Print a trace of all calls made and from where.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-trace\-expand
Put cmake in trace mode.
.sp
Like \fI\%\-\-trace\fP, but with variables expanded.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-trace\-format=<format>
Put cmake in trace mode and sets the trace output format.
.sp
\fB<format>\fP can be one of the following values.
.INDENT 7.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBhuman\fP
Prints each trace line in a human\-readable format. This is the
default format.
.TP
.B \fBjson\-v1\fP
Prints each line as a separate JSON document. Each document is
separated by a newline ( \fB\en\fP ). It is guaranteed that no
newline characters will be present inside a JSON document.
.sp
JSON trace format
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{
  \(dqfile\(dq: \(dq/full/path/to/the/CMake/file.txt\(dq,
  \(dqline\(dq: 0,
  \(dqcmd\(dq: \(dqadd_executable\(dq,
  \(dqargs\(dq: [\(dqfoo\(dq, \(dqbar\(dq],
  \(dqtime\(dq: 1579512535.9687231,
  \(dqframe\(dq: 2,
  \(dqglobal_frame\(dq: 4
}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The members are:
.INDENT 7.0
.TP
.B \fBfile\fP
The full path to the CMake source file where the function
was called.
.TP
.B \fBline\fP
The line in \fBfile\fP where the function call begins.
.TP
.B \fBline_end\fP
If the function call spans multiple lines, this field will
be set to the line where the function call ends. If the function
calls spans a single line, this field will be unset. This field
was added in minor version 2 of the \fBjson\-v1\fP format.
.TP
.B \fBdefer\fP
Optional member that is present when the function call was deferred
by \fI\%cmake_language(DEFER)\fP\&.  If present, its value is a
string containing the deferred call \fB<id>\fP\&.
.TP
.B \fBcmd\fP
The name of the function that was called.
.TP
.B \fBargs\fP
A string list of all function parameters.
.TP
.B \fBtime\fP
Timestamp (seconds since epoch) of the function call.
.TP
.B \fBframe\fP
Stack frame depth of the function that was called, within the
context of the  \fBCMakeLists.txt\fP being processed currently.
.TP
.B \fBglobal_frame\fP
Stack frame depth of the function that was called, tracked globally
across all \fBCMakeLists.txt\fP files involved in the trace. This field
was added in minor version 2 of the \fBjson\-v1\fP format.
.UNINDENT
.sp
Additionally, the first JSON document outputted contains the
\fBversion\fP key for the current major and minor version of the
.sp
JSON version format
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{
  \(dqversion\(dq: {
    \(dqmajor\(dq: 1,
    \(dqminor\(dq: 2
  }
}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The members are:
.INDENT 7.0
.TP
.B \fBversion\fP
Indicates the version of the JSON format. The version has a
major and minor components following semantic version conventions.
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-\-trace\-source=<file>
Put cmake in trace mode, but output only lines of a specified file.
.sp
Multiple options are allowed.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-trace\-redirect=<file>
Put cmake in trace mode and redirect trace output to a file instead of stderr.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-warn\-uninitialized
Warn about uninitialized values.
.sp
Print a warning when an uninitialized variable is used.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-warn\-unused\-vars
Does nothing.  In CMake versions 3.2 and below this enabled warnings about
unused variables.  In CMake versions 3.3 through 3.18 the option was broken.
In CMake 3.19 and above the option has been removed.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-no\-warn\-unused\-cli
Don\(aqt warn about command line options.
.sp
Don\(aqt find variables that are declared on the command line, but not
used.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-check\-system\-vars
Find problems with variable usage in system files.
.sp
Normally, unused and uninitialized variables are searched for only
in \fI\%CMAKE_SOURCE_DIR\fP and \fI\%CMAKE_BINARY_DIR\fP\&.
This flag tells CMake to warn about other files as well.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-compile\-no\-warning\-as\-error
Ignore target property \fI\%COMPILE_WARNING_AS_ERROR\fP and variable
\fI\%CMAKE_COMPILE_WARNING_AS_ERROR\fP, preventing warnings from being
treated as errors on compile.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-profiling\-output=<path>
Used in conjunction with
\fI\%\-\-profiling\-format\fP to output to a
given path.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-profiling\-format=<file>
Enable the output of profiling data of CMake script in the given format.
.sp
This can aid performance analysis of CMake scripts executed. Third party
applications should be used to process the output into human readable format.
.sp
Currently supported values are:
\fBgoogle\-trace\fP Outputs in Google Trace Format, which can be parsed by the
\fI\%about:tracing\fP tab of Google Chrome or using a plugin for a tool like Trace
Compass.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-preset <preset>, \-\-preset=<preset>
Reads a \fI\%preset\fP from
\fB<path\-to\-source>/CMakePresets.json\fP and
\fB<path\-to\-source>/CMakeUserPresets.json\fP\&. The preset may specify the
generator and the build directory, and a list of variables and other
arguments to pass to CMake. The current working directory must contain
CMake preset files. The \fI\%CMake GUI\fP can
also recognize \fBCMakePresets.json\fP and \fBCMakeUserPresets.json\fP files. For
full details on these files, see \fI\%cmake\-presets(7)\fP\&.
.sp
The presets are read before all other command line options. The options
specified by the preset (variables, generator, etc.) can all be overridden by
manually specifying them on the command line. For example, if the preset sets
a variable called \fBMYVAR\fP to \fB1\fP, but the user sets it to \fB2\fP with a
\fB\-D\fP argument, the value \fB2\fP is preferred.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-list\-presets[=<type>]
Lists the available presets of the specified \fB<type>\fP\&.  Valid values for
\fB<type>\fP are \fBconfigure\fP, \fBbuild\fP, \fBtest\fP, \fBpackage\fP, or \fBall\fP\&.
If \fB<type>\fP is omitted, \fBconfigure\fP is assumed.  The current working
directory must contain CMake preset files.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debugger
Enables interactive debugging of the CMake language. CMake exposes a debugging
interface on the pipe named by \fI\%\-\-debugger\-pipe\fP
that conforms to the \fI\%Debug Adapter Protocol\fP specification with the following
modifications.
.sp
The \fBinitialize\fP response includes an additional field named \fBcmakeVersion\fP
which specifies the version of CMake being debugged.
.sp
Debugger initialize response
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
{
  \(dqcmakeVersion\(dq: {
    \(dqmajor\(dq: 3,
    \(dqminor\(dq: 27,
    \(dqpatch\(dq: 0,
    \(dqfull\(dq: \(dq3.27.0\(dq
  }
}
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
The members are:
.INDENT 7.0
.TP
.B \fBmajor\fP
An integer specifying the major version number.
.TP
.B \fBminor\fP
An integer specifying the minor version number.
.TP
.B \fBpatch\fP
An integer specifying the patch version number.
.TP
.B \fBfull\fP
A string specifying the full CMake version.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debugger\-pipe <pipe name>, \-\-debugger\-pipe=<pipe name>
Name of the pipe (on Windows) or domain socket (on Unix) to use for
debugger communication.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-debugger\-dap\-log <log path>, \-\-debugger\-dap\-log=<log path>
Logs all debugger communication to the specified file.
.UNINDENT
.SH BUILD A PROJECT
.sp
CMake provides a command\-line signature to build an already\-generated
project binary tree:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-build <dir>             [<options>] [\-\- <build\-tool\-options>]
cmake \-\-build \-\-preset <preset> [<options>] [\-\- <build\-tool\-options>]
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This abstracts a native build tool\(aqs command\-line interface with the
following options:
.INDENT 0.0
.TP
.B \-\-build <dir>
Project binary directory to be built.  This is required (unless a preset
is specified) and must be first.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-preset <preset>, \-\-preset=<preset>
Use a build preset to specify build options. The project binary directory
is inferred from the \fBconfigurePreset\fP key. The current working directory
must contain CMake preset files.
See \fI\%preset\fP for more details.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-list\-presets
Lists the available build presets. The current working directory must
contain CMake preset files.
.UNINDENT
.INDENT 0.0
.TP
.B \-j [<jobs>], \-\-parallel [<jobs>]
New in version 3.12.

.sp
The maximum number of concurrent processes to use when building.
If \fB<jobs>\fP is omitted the native build tool\(aqs default number is used.
.sp
The \fI\%CMAKE_BUILD_PARALLEL_LEVEL\fP environment variable, if set,
specifies a default parallel level when this option is not given.
.sp
Some native build tools always build in parallel.  The use of \fB<jobs>\fP
value of \fB1\fP can be used to limit to a single job.
.UNINDENT
.INDENT 0.0
.TP
.B \-t <tgt>..., \-\-target <tgt>...
Build \fB<tgt>\fP instead of the default target.  Multiple targets may be
given, separated by spaces.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-config <cfg>
For multi\-configuration tools, choose configuration \fB<cfg>\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-clean\-first
Build target \fBclean\fP first, then build.
(To clean only, use \fI\%\-\-target clean\fP\&.)
.UNINDENT
.INDENT 0.0
.TP
.B \-\-resolve\-package\-references=<value>
New in version 3.23.

.sp
Resolve remote package references from external package managers (e.g. NuGet)
before build. When \fB<value>\fP is set to \fBon\fP (default), packages will be
restored before building a target.  When \fB<value>\fP is set to \fBonly\fP, the
packages will be restored, but no build will be performed.  When
\fB<value>\fP is set to \fBoff\fP, no packages will be restored.
.sp
If the target does not define any package references, this option does nothing.
.sp
This setting can be specified in a build preset (using
\fBresolvePackageReferences\fP). The preset setting will be ignored, if this
command line option is specified.
.sp
If no command line parameter or preset option are provided, an environment\-
specific cache variable will be evaluated to decide, if package restoration
should be performed.
.sp
When using the Visual Studio generator, package references are defined
using the \fI\%VS_PACKAGE_REFERENCES\fP property. Package references
are restored using NuGet. It can be disabled by setting the
\fBCMAKE_VS_NUGET_PACKAGE_RESTORE\fP variable to \fBOFF\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-use\-stderr
Ignored.  Behavior is default in CMake >= 3.0.
.UNINDENT
.INDENT 0.0
.TP
.B \-v, \-\-verbose
Enable verbose output \- if supported \- including the build commands to be
executed.
.sp
This option can be omitted if \fI\%VERBOSE\fP environment variable or
\fI\%CMAKE_VERBOSE_MAKEFILE\fP cached variable is set.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-
Pass remaining options to the native tool.
.UNINDENT
.sp
Run \fI\%cmake \-\-build\fP with no options for quick help.
.SH INSTALL A PROJECT
.sp
CMake provides a command\-line signature to install an already\-generated
project binary tree:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-install <dir> [<options>]
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
This may be used after building a project to run installation without
using the generated build system or the native build tool.
The options are:
.INDENT 0.0
.TP
.B \-\-install <dir>
Project binary directory to install. This is required and must be first.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-config <cfg>
For multi\-configuration generators, choose configuration \fB<cfg>\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-component <comp>
Component\-based install. Only install component \fB<comp>\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-default\-directory\-permissions <permissions>
Default directory install permissions. Permissions in format \fB<u=rwx,g=rx,o=rx>\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-prefix <prefix>
Override the installation prefix, \fI\%CMAKE_INSTALL_PREFIX\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-strip
Strip before installing.
.UNINDENT
.INDENT 0.0
.TP
.B \-v, \-\-verbose
Enable verbose output.
.sp
This option can be omitted if \fI\%VERBOSE\fP environment variable is set.
.UNINDENT
.sp
Run \fI\%cmake \-\-install\fP with no options for quick help.
.SH OPEN A PROJECT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-open <dir>
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
Open the generated project in the associated application.  This is only
supported by some generators.
.SH RUN A SCRIPT
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake [\-D <var>=<value>]... \-P <cmake\-script\-file> [\-\- <unparsed\-options>...]
.ft P
.fi
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-D <var>=<value>
Define a variable for script mode.
.UNINDENT
.INDENT 0.0
.TP
.B \-P <cmake\-script\-file>
Process the given cmake file as a script written in the CMake
language.  No configure or generate step is performed and the cache
is not modified.  If variables are defined using \fB\-D\fP, this must be
done before the \fB\-P\fP argument.
.UNINDENT
.sp
Any options after \fB\-\-\fP are not parsed by CMake, but they are still included
in the set of \fI\%CMAKE_ARGV<n>\fP variables passed to the
script (including the \fB\-\-\fP itself).
.SH RUN A COMMAND-LINE TOOL
.sp
CMake provides builtin command\-line tools through the signature
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-E <command> [<options>]
.ft P
.fi
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B \-E [help]
Run \fBcmake \-E\fP or \fBcmake \-E help\fP for a summary of commands.
.UNINDENT
.sp
Available commands are:
.INDENT 0.0
.TP
.B capabilities
New in version 3.7.

.sp
Report cmake capabilities in JSON format. The output is a JSON object
with the following keys:
.INDENT 7.0
.TP
.B \fBversion\fP
A JSON object with version information. Keys are:
.INDENT 7.0
.TP
.B \fBstring\fP
The full version string as displayed by cmake \fI\%\-\-version\fP\&.
.TP
.B \fBmajor\fP
The major version number in integer form.
.TP
.B \fBminor\fP
The minor version number in integer form.
.TP
.B \fBpatch\fP
The patch level in integer form.
.TP
.B \fBsuffix\fP
The cmake version suffix string.
.TP
.B \fBisDirty\fP
A bool that is set if the cmake build is from a dirty tree.
.UNINDENT
.TP
.B \fBgenerators\fP
A list available generators. Each generator is a JSON object with the
following keys:
.INDENT 7.0
.TP
.B \fBname\fP
A string containing the name of the generator.
.TP
.B \fBtoolsetSupport\fP
\fBtrue\fP if the generator supports toolsets and \fBfalse\fP otherwise.
.TP
.B \fBplatformSupport\fP
\fBtrue\fP if the generator supports platforms and \fBfalse\fP otherwise.
.TP
.B \fBsupportedPlatforms\fP
New in version 3.21.

.sp
Optional member that may be present when the generator supports
platform specification via \fI\%CMAKE_GENERATOR_PLATFORM\fP
(\fI\%\-A ...\fP).  The value is a list of platforms known to
be supported.
.TP
.B \fBextraGenerators\fP
A list of strings with all the \fI\%Extra Generators\fP compatible with
the generator.
.UNINDENT
.TP
.B \fBfileApi\fP
Optional member that is present when the \fI\%cmake\-file\-api(7)\fP
is available.  The value is a JSON object with one member:
.INDENT 7.0
.TP
.B \fBrequests\fP
A JSON array containing zero or more supported file\-api requests.
Each request is a JSON object with members:
.INDENT 7.0
.TP
.B \fBkind\fP
Specifies one of the supported \fI\%Object Kinds\fP\&.
.TP
.B \fBversion\fP
A JSON array whose elements are each a JSON object containing
\fBmajor\fP and \fBminor\fP members specifying non\-negative integer
version components.
.UNINDENT
.UNINDENT
.TP
.B \fBserverMode\fP
\fBtrue\fP if cmake supports server\-mode and \fBfalse\fP otherwise.
Always false since CMake 3.20.
.TP
.B \fBtls\fP
New in version 3.25.

.sp
\fBtrue\fP if TLS support is enabled and \fBfalse\fP otherwise.
.TP
.B \fBdebugger\fP
New in version 3.27.

.sp
\fBtrue\fP if the \fI\%\-\-debugger\fP mode
is supported and \fBfalse\fP otherwise.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B cat [\-\-] <files>...
New in version 3.18.

.sp
Concatenate files and print on the standard output.
.INDENT 7.0
.TP
.B \-\-
New in version 3.24.

.sp
Added support for the double dash argument \fB\-\-\fP\&. This basic implementation
of \fBcat\fP does not support any options, so using a option starting with
\fB\-\fP will result in an error. Use \fB\-\-\fP to indicate the end of options, in
case a file starts with \fB\-\fP\&.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B chdir <dir> <cmd> [<arg>...]
Change the current working directory and run a command.
.UNINDENT
.INDENT 0.0
.TP
.B compare_files [\-\-ignore\-eol] <file1> <file2>
Check if \fB<file1>\fP is same as \fB<file2>\fP\&. If files are the same,
then returns \fB0\fP, if not it returns \fB1\fP\&.  In case of invalid
arguments, it returns 2.
.INDENT 7.0
.TP
.B \-\-ignore\-eol
New in version 3.14.

.sp
The option implies line\-wise comparison and ignores LF/CRLF differences.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B copy <file>... <destination>, copy \-t <destination> <file>...
Copy files to \fB<destination>\fP (either file or directory).
If multiple files are specified, or if \fB\-t\fP is specified, the
\fB<destination>\fP must be directory and it must exist. If \fB\-t\fP is not
specified, the last argument is assumed to be the \fB<destination>\fP\&.
Wildcards are not supported. \fBcopy\fP does follow symlinks. That means it
does not copy symlinks, but the files or directories it point to.
.sp
New in version 3.5: Support for multiple input files.

.sp
New in version 3.26: Support for \fB\-t\fP argument.

.UNINDENT
.INDENT 0.0
.TP
.B copy_directory <dir>... <destination>
Copy content of \fB<dir>...\fP directories to \fB<destination>\fP directory.
If \fB<destination>\fP directory does not exist it will be created.
\fBcopy_directory\fP does follow symlinks.
.sp
New in version 3.5: Support for multiple input directories.

.sp
New in version 3.15: The command now fails when the source directory does not exist.
Previously it succeeded by creating an empty destination directory.

.UNINDENT
.INDENT 0.0
.TP
.B copy_directory_if_different <dir>... <destination>
New in version 3.26.

.sp
Copy changed content of \fB<dir>...\fP directories to \fB<destination>\fP directory.
If \fB<destination>\fP directory does not exist it will be created.
.sp
\fBcopy_directory_if_different\fP does follow symlinks.
The command fails when the source directory does not exist.
.UNINDENT
.INDENT 0.0
.TP
.B copy_if_different <file>... <destination>
Copy files to \fB<destination>\fP (either file or directory) if
they have changed.
If multiple files are specified, the \fB<destination>\fP must be
directory and it must exist.
\fBcopy_if_different\fP does follow symlinks.
.sp
New in version 3.5: Support for multiple input files.

.UNINDENT
.INDENT 0.0
.TP
.B create_symlink <old> <new>
Create a symbolic link \fB<new>\fP naming \fB<old>\fP\&.
.sp
New in version 3.13: Support for creating symlinks on Windows.

.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Path to where \fB<new>\fP symbolic link will be created has to exist beforehand.
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B create_hardlink <old> <new>
New in version 3.19.

.sp
Create a hard link \fB<new>\fP naming \fB<old>\fP\&.
.sp
\fBNOTE:\fP
.INDENT 7.0
.INDENT 3.5
Path to where \fB<new>\fP hard link will be created has to exist beforehand.
\fB<old>\fP has to exist beforehand.
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B echo [<string>...]
Displays arguments as text.
.UNINDENT
.INDENT 0.0
.TP
.B echo_append [<string>...]
Displays arguments as text but no new line.
.UNINDENT
.INDENT 0.0
.TP
.B env [<options>] [\-\-] <command> [<arg>...]
New in version 3.1.

.sp
Run command in a modified environment. Options are:
.INDENT 7.0
.TP
.B NAME=VALUE
Replaces the current value of \fBNAME\fP with \fBVALUE\fP\&.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-unset=NAME
Unsets the current value of \fBNAME\fP\&.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-modify ENVIRONMENT_MODIFICATION
New in version 3.25.

.sp
Apply a single \fI\%ENVIRONMENT_MODIFICATION\fP operation to the
modified environment.
.sp
The \fBNAME=VALUE\fP and \fB\-\-unset=NAME\fP options are equivalent to
\fB\-\-modify NAME=set:VALUE\fP and \fB\-\-modify NAME=unset:\fP, respectively.
Note that \fB\-\-modify NAME=reset:\fP resets \fBNAME\fP to the value it had
when \fBcmake\fP launched (or unsets it), not to the most recent
\fBNAME=VALUE\fP option.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-
New in version 3.24.

.sp
Added support for the double dash argument \fB\-\-\fP\&. Use \fB\-\-\fP to stop
interpreting options/environment variables and treat the next argument as
the command, even if it start with \fB\-\fP or contains a \fB=\fP\&.
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B environment
Display the current environment variables.
.UNINDENT
.INDENT 0.0
.TP
.B false
New in version 3.16.

.sp
Do nothing, with an exit code of 1.
.UNINDENT
.INDENT 0.0
.TP
.B make_directory <dir>...
Create \fB<dir>\fP directories.  If necessary, create parent
directories too.  If a directory already exists it will be
silently ignored.
.sp
New in version 3.5: Support for multiple input directories.

.UNINDENT
.INDENT 0.0
.TP
.B md5sum <file>...
Create MD5 checksum of files in \fBmd5sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
351abe79cd3800b38cdfb25d45015a15  file1.txt
052f86c15bbde68af55c7f7b340ab639  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B sha1sum <file>...
New in version 3.10.

.sp
Create SHA1 checksum of files in \fBsha1sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
4bb7932a29e6f73c97bb9272f2bdc393122f86e0  file1.txt
1df4c8f318665f9a5f2ed38f55adadb7ef9f559c  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B sha224sum <file>...
New in version 3.10.

.sp
Create SHA224 checksum of files in \fBsha224sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
b9b9346bc8437bbda630b0b7ddfc5ea9ca157546dbbf4c613192f930  file1.txt
6dfbe55f4d2edc5fe5c9197bca51ceaaf824e48eba0cc453088aee24  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B sha256sum <file>...
New in version 3.10.

.sp
Create SHA256 checksum of files in \fBsha256sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
76713b23615d31680afeb0e9efe94d47d3d4229191198bb46d7485f9cb191acc  file1.txt
15b682ead6c12dedb1baf91231e1e89cfc7974b3787c1e2e01b986bffadae0ea  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B sha384sum <file>...
New in version 3.10.

.sp
Create SHA384 checksum of files in \fBsha384sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
acc049fedc091a22f5f2ce39a43b9057fd93c910e9afd76a6411a28a8f2b8a12c73d7129e292f94fc0329c309df49434  file1.txt
668ddeb108710d271ee21c0f3acbd6a7517e2b78f9181c6a2ff3b8943af92b0195dcb7cce48aa3e17893173c0a39e23d  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B sha512sum <file>...
New in version 3.10.

.sp
Create SHA512 checksum of files in \fBsha512sum\fP compatible format:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
2a78d7a6c5328cfb1467c63beac8ff21794213901eaadafd48e7800289afbc08e5fb3e86aa31116c945ee3d7bf2a6194489ec6101051083d1108defc8e1dba89  file1.txt
7a0b54896fe5e70cca6dd643ad6f672614b189bf26f8153061c4d219474b05dad08c4e729af9f4b009f1a1a280cb625454bf587c690f4617c27e3aebdf3b7a2d  file2.txt
.ft P
.fi
.UNINDENT
.UNINDENT
.UNINDENT
.INDENT 0.0
.TP
.B remove [\-f] <file>...
Deprecated since version 3.17.

.sp
Remove the file(s). The planned behavior was that if any of the
listed files already do not exist, the command returns a non\-zero exit code,
but no message is logged. The \fB\-f\fP option changes the behavior to return a
zero exit code (i.e. success) in such situations instead.
\fBremove\fP does not follow symlinks. That means it remove only symlinks
and not files it point to.
.sp
The implementation was buggy and always returned 0. It cannot be fixed without
breaking backwards compatibility. Use \fBrm\fP instead.
.UNINDENT
.INDENT 0.0
.TP
.B remove_directory <dir>...
Deprecated since version 3.17.

.sp
Remove \fB<dir>\fP directories and their contents. If a directory does
not exist it will be silently ignored.
Use \fBrm\fP instead.
.sp
New in version 3.15: Support for multiple directories.

.sp
New in version 3.16: If \fB<dir>\fP is a symlink to a directory, just the symlink will be removed.

.UNINDENT
.INDENT 0.0
.TP
.B rename <oldname> <newname>
Rename a file or directory (on one volume). If file with the \fB<newname>\fP name
already exists, then it will be silently replaced.
.UNINDENT
.INDENT 0.0
.TP
.B rm [\-rRf] [\-\-] <file|dir>...
New in version 3.17.

.sp
Remove the files \fB<file>\fP or directories \fB<dir>\fP\&.
Use \fB\-r\fP or \fB\-R\fP to remove directories and their contents recursively.
If any of the listed files/directories do not exist, the command returns a
non\-zero exit code, but no message is logged. The \fB\-f\fP option changes
the behavior to return a zero exit code (i.e. success) in such
situations instead. Use \fB\-\-\fP to stop interpreting options and treat all
remaining arguments as paths, even if they start with \fB\-\fP\&.
.UNINDENT
.INDENT 0.0
.TP
.B sleep <number>
New in version 3.0.

.sp
Sleep for \fB<number>\fP seconds. \fB<number>\fP may be a floating point number.
A practical minimum is about 0.1 seconds due to overhead in starting/stopping
CMake executable. This can be useful in a CMake script to insert a delay:
.INDENT 7.0
.INDENT 3.5
.sp
.nf
.ft C
# Sleep for about 0.5 seconds
execute_process(COMMAND ${CMAKE_COMMAND} \-E sleep 0.5)
.ft P
.fi
.UNINDENT
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.INDENT 0.0
.TP
.B tar [cxt][vf][zjJ] file.tar [<options>] [\-\-] [<pathname>...]
Create or extract a tar or zip archive.  Options are:
.INDENT 7.0
.TP
.B c
Create a new archive containing the specified files.
If used, the \fB<pathname>...\fP argument is mandatory.
.UNINDENT
.INDENT 7.0
.TP
.B x
Extract to disk from the archive.
.sp
New in version 3.15: The \fB<pathname>...\fP argument could be used to extract only selected files
or directories.
When extracting selected files or directories, you must provide their exact
names including the path, as printed by list (\fB\-t\fP).

.UNINDENT
.INDENT 7.0
.TP
.B t
List archive contents.
.sp
New in version 3.15: The \fB<pathname>...\fP argument could be used to list only selected files
or directories.

.UNINDENT
.INDENT 7.0
.TP
.B v
Produce verbose output.
.UNINDENT
.INDENT 7.0
.TP
.B z
Compress the resulting archive with gzip.
.UNINDENT
.INDENT 7.0
.TP
.B j
Compress the resulting archive with bzip2.
.UNINDENT
.INDENT 7.0
.TP
.B J
New in version 3.1.

.sp
Compress the resulting archive with XZ.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-zstd
New in version 3.15.

.sp
Compress the resulting archive with Zstandard.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-files\-from=<file>
New in version 3.1.

.sp
Read file names from the given file, one per line.
Blank lines are ignored.  Lines may not start in \fB\-\fP
except for \fB\-\-add\-file=<name>\fP to add files whose
names start in \fB\-\fP\&.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-format=<format>
New in version 3.3.

.sp
Specify the format of the archive to be created.
Supported formats are: \fB7zip\fP, \fBgnutar\fP, \fBpax\fP,
\fBpaxr\fP (restricted pax, default), and \fBzip\fP\&.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-mtime=<date>
New in version 3.1.

.sp
Specify modification time recorded in tarball entries.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-touch
New in version 3.24.

.sp
Use current local timestamp instead of extracting file timestamps
from the archive.
.UNINDENT
.INDENT 7.0
.TP
.B \-\-
New in version 3.1.

.sp
Stop interpreting options and treat all remaining arguments
as file names, even if they start with \fB\-\fP\&.
.UNINDENT
.sp
New in version 3.1: LZMA (7zip) support.

.sp
New in version 3.15: The command now continues adding files to an archive even if some of the
files are not readable.  This behavior is more consistent with the classic
\fBtar\fP tool. The command now also parses all flags, and if an invalid flag
was provided, a warning is issued.

.UNINDENT
.INDENT 0.0
.TP
.B time <command> [<args>...]
Run \fB<command>\fP and display elapsed time (including overhead of CMake frontend).
.sp
New in version 3.5: The command now properly passes arguments with spaces or special characters
through to the child process. This may break scripts that worked around the
bug with their own extra quoting or escaping.

.UNINDENT
.INDENT 0.0
.TP
.B touch <file>...
Creates \fB<file>\fP if file do not exist.
If \fB<file>\fP exists, it is changing \fB<file>\fP access and modification times.
.UNINDENT
.INDENT 0.0
.TP
.B touch_nocreate <file>...
Touch a file if it exists but do not create it.  If a file does
not exist it will be silently ignored.
.UNINDENT
.INDENT 0.0
.TP
.B true
New in version 3.16.

.sp
Do nothing, with an exit code of 0.
.UNINDENT
.SS Windows\-specific Command\-Line Tools
.sp
The following \fBcmake \-E\fP commands are available only on Windows:
.INDENT 0.0
.TP
.B delete_regv <key>
Delete Windows registry value.
.UNINDENT
.INDENT 0.0
.TP
.B env_vs8_wince <sdkname>
New in version 3.2.

.sp
Displays a batch file which sets the environment for the provided
Windows CE SDK installed in VS2005.
.UNINDENT
.INDENT 0.0
.TP
.B env_vs9_wince <sdkname>
New in version 3.2.

.sp
Displays a batch file which sets the environment for the provided
Windows CE SDK installed in VS2008.
.UNINDENT
.INDENT 0.0
.TP
.B write_regv <key> <value>
Write Windows registry value.
.UNINDENT
.SH RUN THE FIND-PACKAGE TOOL
.sp
CMake provides a pkg\-config like helper for Makefile\-based projects:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-find\-package [<options>]
.ft P
.fi
.UNINDENT
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.sp
It searches a package using \fI\%find_package()\fP and prints the
resulting flags to stdout.  This can be used instead of pkg\-config
to find installed libraries in plain Makefile\-based projects or in
autoconf\-based projects (via \fBshare/aclocal/cmake.m4\fP).
.sp
\fBNOTE:\fP
.INDENT 0.0
.INDENT 3.5
This mode is not well\-supported due to some technical limitations.
It is kept for compatibility but should not be used in new projects.
.UNINDENT
.UNINDENT
.SH RUN A WORKFLOW PRESET
.sp
\fI\%CMake Presets\fP provides a way to execute multiple
build steps in order:
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-workflow [<options>]
.ft P
.fi
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.sp
The options are:
.INDENT 0.0
.TP
.B \-\-workflow
Select a \fI\%Workflow Preset\fP using one of the following options.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-preset <preset>, \-\-preset=<preset>
Use a workflow preset to specify a workflow. The project binary directory
is inferred from the initial configure preset. The current working directory
must contain CMake preset files.
See \fI\%preset\fP for more details.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-list\-presets
Lists the available workflow presets. The current working directory must
contain CMake preset files.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-fresh
Perform a fresh configuration of the build tree.
This removes any existing \fBCMakeCache.txt\fP file and associated
\fBCMakeFiles/\fP directory, and recreates them from scratch.
.UNINDENT
.SH VIEW HELP
.sp
To print selected pages from the CMake documentation, use
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake \-\-help[\-<topic>]
.ft P
.fi
.UNINDENT
.UNINDENT
.sp
with one of the following options:
.INDENT 0.0
.TP
.B \-version [<file>], \-\-version [<file>], /V [<file>]
Show program name/version banner and exit.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-h, \-H, \-\-help, \-help, \-usage, /?
Print usage information and exit.
.sp
Usage describes the basic command line interface and its options.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-full [<file>]
Print all help manuals and exit.
.sp
All manuals are printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-manual <man> [<file>]
Print one help manual and exit.
.sp
The specified manual is printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-manual\-list [<file>]
List help manuals available and exit.
.sp
The list contains all manuals for which help may be obtained by
using the \fB\-\-help\-manual\fP option followed by a manual name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-command <cmd> [<file>]
Print help for one command and exit.
.sp
The \fI\%cmake\-commands(7)\fP manual entry for \fB<cmd>\fP is
printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-command\-list [<file>]
List commands with help available and exit.
.sp
The list contains all commands for which help may be obtained by
using the \fB\-\-help\-command\fP option followed by a command name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-commands [<file>]
Print cmake\-commands manual and exit.
.sp
The \fI\%cmake\-commands(7)\fP manual is printed in a
human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-module <mod> [<file>]
Print help for one module and exit.
.sp
The \fI\%cmake\-modules(7)\fP manual entry for \fB<mod>\fP is printed
in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-module\-list [<file>]
List modules with help available and exit.
.sp
The list contains all modules for which help may be obtained by
using the \fB\-\-help\-module\fP option followed by a module name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-modules [<file>]
Print cmake\-modules manual and exit.
.sp
The \fI\%cmake\-modules(7)\fP manual is printed in a human\-readable
text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-policy <cmp> [<file>]
Print help for one policy and exit.
.sp
The \fI\%cmake\-policies(7)\fP manual entry for \fB<cmp>\fP is
printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-policy\-list [<file>]
List policies with help available and exit.
.sp
The list contains all policies for which help may be obtained by
using the \fB\-\-help\-policy\fP option followed by a policy name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-policies [<file>]
Print cmake\-policies manual and exit.
.sp
The \fI\%cmake\-policies(7)\fP manual is printed in a
human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-property <prop> [<file>]
Print help for one property and exit.
.sp
The \fI\%cmake\-properties(7)\fP manual entries for \fB<prop>\fP are
printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-property\-list [<file>]
List properties with help available and exit.
.sp
The list contains all properties for which help may be obtained by
using the \fB\-\-help\-property\fP option followed by a property name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-properties [<file>]
Print cmake\-properties manual and exit.
.sp
The \fI\%cmake\-properties(7)\fP manual is printed in a
human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-variable <var> [<file>]
Print help for one variable and exit.
.sp
The \fI\%cmake\-variables(7)\fP manual entry for \fB<var>\fP is
printed in a human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-variable\-list [<file>]
List variables with help available and exit.
.sp
The list contains all variables for which help may be obtained by
using the \fB\-\-help\-variable\fP option followed by a variable name.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.INDENT 0.0
.TP
.B \-\-help\-variables [<file>]
Print cmake\-variables manual and exit.
.sp
The \fI\%cmake\-variables(7)\fP manual is printed in a
human\-readable text format.
The output is printed to a named \fB<file>\fP if given.
.UNINDENT
.sp
To view the presets available for a project, use
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
cmake <source\-dir> \-\-list\-presets
.ft P
.fi
.UNINDENT
.UNINDENT
.SH RETURN VALUE (EXIT CODE)
.sp
Upon regular termination, the \fBcmake\fP executable returns the exit code \fB0\fP\&.
.sp
If termination is caused by the command \fI\%message(FATAL_ERROR)\fP,
or another error condition, then a non\-zero exit code is returned.
.SH SEE ALSO
.sp
The following resources are available to get help using CMake:
.INDENT 0.0
.TP
.B Home Page
\fI\%https://cmake.org\fP
.sp
The primary starting point for learning about CMake.
.TP
.B Online Documentation and Community Resources
\fI\%https://cmake.org/documentation\fP
.sp
Links to available documentation and community resources may be
found on this web page.
.TP
.B Discourse Forum
\fI\%https://discourse.cmake.org\fP
.sp
The Discourse Forum hosts discussion and questions about CMake.
.UNINDENT
.SH COPYRIGHT
2000-2023 Kitware, Inc. and Contributors
.\" Generated by docutils manpage writer.
.
